WO2000018556A1 - Process for producing foamed articles, especially foamed articles for upholstering car seats - Google Patents

Process for producing foamed articles, especially foamed articles for upholstering car seats Download PDF

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Publication number
WO2000018556A1
WO2000018556A1 PCT/EP1998/006141 EP9806141W WO0018556A1 WO 2000018556 A1 WO2000018556 A1 WO 2000018556A1 EP 9806141 W EP9806141 W EP 9806141W WO 0018556 A1 WO0018556 A1 WO 0018556A1
Authority
WO
WIPO (PCT)
Prior art keywords
adhesive
foam
elements
mold
edge cover
Prior art date
Application number
PCT/EP1998/006141
Other languages
German (de)
French (fr)
Inventor
Konstantinos Poulakis
Original Assignee
Gottlieb Binder Gmbh & Co.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gottlieb Binder Gmbh & Co. filed Critical Gottlieb Binder Gmbh & Co.
Priority to EP98958223A priority Critical patent/EP1117519B1/en
Priority to BR9816036-2A priority patent/BR9816036A/en
Priority to JP2000572063A priority patent/JP4439118B2/en
Priority to US09/787,110 priority patent/US7063878B1/en
Priority to CA002345152A priority patent/CA2345152C/en
Priority to ES98958223T priority patent/ES2192343T3/en
Priority to PCT/EP1998/006141 priority patent/WO2000018556A1/en
Priority to AT98958223T priority patent/ATE232156T1/en
Priority to DE59807145T priority patent/DE59807145D1/en
Publication of WO2000018556A1 publication Critical patent/WO2000018556A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1271—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed parts being partially covered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/12—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
    • B29C33/14—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels against the mould wall
    • B29C33/16—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels against the mould wall using magnetic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1261—Avoiding impregnation of a preformed part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/727—Fastening elements
    • B29L2031/729—Hook and loop-type fasteners
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24008—Structurally defined web or sheet [e.g., overall dimension, etc.] including fastener for attaching to external surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24008—Structurally defined web or sheet [e.g., overall dimension, etc.] including fastener for attaching to external surface
    • Y10T428/24017—Hook or barb

Definitions

  • the invention relates to a method for producing a foam body part, in particular an upholstered foam part for a vehicle seat, which is provided with at least one adhesive closure part with adhesive elements which are covered by a foam-holding cover and are accommodated in a foam-in-mold producing the foam body part.
  • Foam body parts with foamed-in adhesive fastener parts are preferably used as upholstery foam parts for seat elements, backrests or headrests, in particular for vehicle seats.
  • the adhesive elements of the foamed-in adhesive fastener parts generally serve to fasten cover materials which are provided with adhesive fastener parts with corresponding adhesive elements to the respective upholstery foam part.
  • BESL ⁇ FIEUNGSKOPIE In order to ensure the functionality of the adhesive fastener parts, it is essential during the foaming process that the adhesive elements are securely protected against penetration of the foam material by means of the foam-holding cover, so that sticking of the adhesive elements is avoided.
  • thermoplastic material is used as the sealing compound, which can be melted and reused after it has been removed.
  • the invention is therefore based on the object of demonstrating a method which enables the production of foam body parts with foamed-in adhesive fastener parts in a comparatively simpler and more economical manner.
  • the interlocking side having the adhesive elements is free of any sealing material
  • the foam covering is rather ensured by the adhesive closure part itself, which is held with its protruding edge regions in sealing contact with relevant parts of the foaming mold, the desired simplification of the process sequence results , since sealing material is neither applied to the adhesive elements, nor must it subsequently be removed, so that the further measures for the possible reuse of sealing material are also eliminated.
  • the adhesive elements are preferably arranged in one plane with the edge cover of the adhesive fastener part in contact with the foaming mold, or in another type of embodiment, the adhesive elements are preferably arranged in another plane as the edge cover of the adhesive fastener part and in a recess of the foam mold in contact with the latter.
  • At least the edge cover of the touch-and-close fastener part has ferromagnetic components and is used as one part of the holding device, the other part of which is associated with the foaming mold, is formed by holding elements generated on the magnetic field and on which elements form a foam barrier the edge cover is held during the foaming process.
  • the procedure can be such that the ferromagnetic components are an integrated part of the adhesive closure part or are applied as layers on its front and / or rear side.
  • the respective coating can be obtained using a sol-gel process or formed from an adhesive primer.
  • Permanent magnets can be used as the part of the holding device belonging to the foaming mold, for example in the form of a series of bar magnets or magnetic strips which surround the recess or contact surface for the adhesive elements formed in the wall of the foaming mold.
  • the invention also relates to an adhesive closure part which can be foamed into a foam body part and which has the features of claim 10.
  • 1 to 5 each show a schematically simplified and cut end view of the foaming mold with adhesive part to be foamed.
  • the respective fastener part 1 according to FIGS. 1 to 5 is used in particular for foaming upholstery parts of vehicle seats (not shown) during their manufacture.
  • the band-like adhesive fastener part 1 which, however, can also form other surface geometries, has adhesive elements 2 on one side for connection to corresponding adhesive elements of another adhesive fastener part (not shown) to form a conventional adhesive fastener. In this way, upholstery and upholstery materials can then be releasably attached to the foamed vehicle seat via the respective adhesive fastener.
  • the adhesive fastener part 1 shown in FIGS. 1 to 3 is produced using a conventional method, as is shown, for example, by DE 196 46 318.1.
  • the adhesive elements 2 according to Figures 1 to 3 are made of mushroom-like stems formed, which are widened in a plate shape at their free end.
  • the adhesive elements 2 can also consist of loops which are to be produced in a conventional manner and which serve to engage hook-shaped adhesive elements (not shown) of the corresponding adhesive fastener part for producing an adhesive fastener.
  • the respective fastener part 1 with its adhesive elements 2 is covered by a foam-holding cover 3 in a foam mold 4 (not shown) producing the foam body part, which in the figures is only half as part of one Shaped box is shown.
  • the cover 3 is formed by the adhesive closure part 1 itself, which is arranged with an edge cover 5 which can be predetermined in width, with a sealing surface projecting beyond the surface area with the adhesive elements 2, and with a holding device which is designated as a whole by 6 in detachable system with the foam 4 is brought.
  • the adhesive elements 2 can be arranged in one plane with the edge cover 5 of the adhesive fastener part 1 in contact with the foaming mold 4, so that the surface area with the adhesive elements 2 is in the direction of view of FIG. 1 and 4 bulges upward as seen above.
  • the adhesive elements 2 are arranged in a different plane from the edge cover 5 of the adhesive closure part 1 and in a recess 7 of the foam mold 4 in contact with the latter.
  • the levels referred to relate to the front-side contact surfaces of adhesive fastener parts 1 with their adhesive elements 2.
  • the edge cover 5 is formed at least from two longitudinal edges of the adhesive closure part 1, which are provided with the surface area with the adhesive elements 2 between them free of the adhesive elements 2. However, the edge cover 5 preferably completely encompasses the surface area with the adhesive elements 2 on all sides in the manner of a rectangular shape.
  • the mentioned ferromagnetic components can be formed as an integrated part of the adhesive closure part or can be applied as layers on its front and / or back.
  • the respective coating is preferably obtained using a sol-gel process or formed from an adhesive primer.
  • sol-gel process which is used in the production of adhesive fastener parts 1, is described in PCT / EP 98/03055.
  • the layer 9 obtained via the sol-gel process is nanocomposite, the sol-gel being selected on the basis of Si0 2 and / or Ti0 2 modified Si0 2 . So that the relevant layer 9 has ferromagnetic properties, the sol gel is mixed with ferrite or a ferrite-containing material of the structure Fe v Oy. Magnetite can also be precipitated in order to obtain a ferromagnetic sol gel.
  • the layer 9 can be applied to the adhesive fastener part 1 by padding, dipping, spraying, pouring, vapor deposition, laminating or knife coating and laminating.
  • the respective layer 9 can also consist of an adhesive primer made of resorcinol and / or at least one of its derivatives.
  • an adhesive primer is a polyurethane layer containing ferromagnetics, which may be, for example, the polyurethane SU 9182 from Stahl.
  • a relevant primer is described in PCT / EP 98/02886.
  • the holding elements 8 of the foaming mold 4 which generate magnetic fields are formed from permanent magnets, for example in the form of magnetic strips 10 or bar magnets (not shown) inserted in the foaming mold 4 or in their molded parts (pipes).
  • the respective fastener parts 1 with their ferromagnetic properties or with their respective layers are held in firm contact and position within the foaming mold 4 during the foaming process, the respective cover 3 being formed in the region, forming a sealing surface or foam barrier the respective edge cover 5 avoids the harmful penetration of the foam material into the adhesive elements 2 with certainty. Any additional covers on the back of the adhesive closure part 1 or in the form of a sealing compound directly for the adhesive elements 2 are thus avoided. As shown in FIGS.
  • the edge covers 5 can end in the area of the magnetic strips 10 or, as shown in FIGS. 2, 3 and 5, extend beyond them in their edge dimensions and form an extended sealing section.
  • the layers 9 mentioned can, in particular if they are arranged on the back of the respective fastener part 1 facing away from the foaming mold 4, improve the foaming process in such a way that safe foaming of the fastener part 1 in the polyurethane foam material of the motor vehicle upholstery part occurs.
  • the adhesive fastener part 1 consists in particular of a polyamide or a polyolefin material.
  • the known manufacturing process according to DE 196 46 318 A1 is used to manufacture the adhesive fastener part 1 with his A large number of integrally formed adhesive elements 2 in the form of stems having thickenings are fed a thermoplastic in a plastic or liquid state into a gap between a pressure roller and a shaping roller, the shaping roller being provided with cavities which are open to the inside and outside and both rollers are driven in opposite directions of rotation .
  • the molding roll has a screen, the cavities of which have been produced by etching or by means of a laser, the adhesive closure elements being produced solely by the fact that the thermoplastic material hardens in the open cavities of the screen of the molding roll.
  • the thickenings of the individual stems mentioned are formed in the form of flattened or concave recesses with mushroom heads.
  • the loops can be produced as adhesive elements 2 as shown in FIGS. 4 and 5.
  • very small individual adhesive elements 2 can be produced, the size of which may well be in the nanometer range.
  • the adhesive closure part 1 can also be formed from textile or other plastic materials, for example using conventional knitting and knitting techniques. If these are provided with ferromagnetic coatings, a sealing foam barrier can also be achieved. After the foaming process has been carried out, the foamed part, in particular the upholstered part, can be easily removed from the foaming mold 4 with the adhesive closure part 1 foamed therein, overcoming the holding forces of the holding elements 8 arranged in the foaming mold.
  • the foaming mold 4 is then available for a new foaming process Available.
  • the adhesive elements 2 of the adhesive closure part 1 foamed in this way are then exposed to the surroundings in any case and have no foam material that could impair their functionality.
  • no additives or additional seals, such as attached sealing lips or the like, are necessary, but the sealing is carried out solely by the plane-parallel contact of surfaces of the adhesive fastener tape with corresponding contact surfaces of the foaming mold.
  • the edge cover 5 of the adhesive closure part 1, which produces the seal can be designed in the manner of a film or at least very thin-walled.

Abstract

The invention relates to a process for producing foamed articles, especially foamed articles for upholstering car seats. Said foamed articles comprises at least an adhesive closing part (1) having adhesive elements (2) which are incorporated into the foaming mold (4) generating the foamed article and which are covered by a foam-protecting cover (3). The adhesive closing part (1) itself constitutes the cover (3). A lateral cover (5) of the adhesive closing part whose width can be chosen overlaps the surface area on which the adhesive elements are arranged and is releasably attached to the foaming mold (4) by means of a fixing device (6). This design simplifies the foaming process and keeps production costs low.

Description

Verfahren zum Herstellen eines Schaumkörperteiles, insbesondere eines Polsterschaumteiles für einen Fahrzeugsitz Method for producing a foam body part, in particular an upholstered foam part for a vehicle seat
Die Erfindung bezieht sich auf ein Verfahren zum Herstellen eines Schaumkörperteiles, insbesondere eines Polsterschaumteiles für einen Fahrzeugsitz, das mit mindestens einem Haftverschlußteil mit Haftelementen versehen wird, die von einer schaumabhaltenden Abdeckung abgedeckt in einer das Schaumkörperteil erzeugenden Einschäumform aufgenommen werden.The invention relates to a method for producing a foam body part, in particular an upholstered foam part for a vehicle seat, which is provided with at least one adhesive closure part with adhesive elements which are covered by a foam-holding cover and are accommodated in a foam-in-mold producing the foam body part.
Schaumkörperteile mit eingeschäumten Haftverschlußteilen finden bevorzugt Anwendung als Polsterschaumteile für Sitzelemente, Rückenlehnen oder Kopfstützen, insbesondere bei Fahrzeugsitzen. Die Haftelemente der eingeschäumten Haftverschlußteile dienen hierbei in der Regel dazu, Überzugstoffe, die mit Haftverschlußteilen mit korrespondierenden Haftelementen versehen sind, am betreffenden Polsterschaumteil zu befestigen.Foam body parts with foamed-in adhesive fastener parts are preferably used as upholstery foam parts for seat elements, backrests or headrests, in particular for vehicle seats. The adhesive elements of the foamed-in adhesive fastener parts generally serve to fasten cover materials which are provided with adhesive fastener parts with corresponding adhesive elements to the respective upholstery foam part.
BESlÄfieUNGSKOPIE Um die Funktionsfähigkeit der Haftverschlußteile sicherzustellen, ist es beim Einschäumvorgang wesentlich, daß die Haftelemente mittels der schaumabhaltenden Abdeckung gegen ein Eindringen des Schaummaterials sicher geschützt sind, so daß ein Verkleben der Haftelemente vermieden ist. In bekannter Weise kann zu diesem Zweck so vorgegangen werden, daß der Haftverschlußteil an der Vorderseite, an der die Haftelemente freiliegen, mit einem die Haftelemente vollflächig bedeckenden Deckelement in Form einer Lage aus einer Dichtmasse bedeckt wird, die nach dem Einschäumvorgang zur Freilegung der Haftelemente wieder abziehbar ist.BESLÄFIEUNGSKOPIE In order to ensure the functionality of the adhesive fastener parts, it is essential during the foaming process that the adhesive elements are securely protected against penetration of the foam material by means of the foam-holding cover, so that sticking of the adhesive elements is avoided. In a known manner, one can proceed for this purpose in such a way that the adhesive closure part on the front side, on which the adhesive elements are exposed, is covered with a cover element covering the adhesive elements in the form of a layer made of a sealing compound, which after the foaming process again exposes the adhesive elements is removable.
Bei einem in der EP 0 612 485 A1 aufgezeigten, bekannten Haftverschlußteil findet hierbei als Dichtmasse ein thermoplastisches Kunststoffmaterial Verwendung, das nach dem Abziehen einschmelzbar und wiederverwendbar ist.In the case of a known adhesive closure part shown in EP 0 612 485 A1, a thermoplastic material is used as the sealing compound, which can be melted and reused after it has been removed.
Trotz Verwendung einer recycelbaren Dichtmasse ist dieses Vorgehen wegen der zusätzlichen Arbeitsschritte für das Aufbringen des Dichtelementes, das Abziehen und der wegen der Wiederverwendung erforderlichen Maßnahmen sehr aufwendig. Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren aufzuzeigen, das die Herstellung von Schaumkörperteilen mit eingeschäumten Haftverschlußteilen auf vergleichsweise einfachere und wirtschaftlichere Weise ermöglicht.Despite the use of a recyclable sealing compound, this procedure is very complex because of the additional work steps for applying the sealing element, the removal and the measures required because of the reuse. The invention is therefore based on the object of demonstrating a method which enables the production of foam body parts with foamed-in adhesive fastener parts in a comparatively simpler and more economical manner.
Diese Aufgabe ist erfindungsgemäß mit einem Verfahren der eingangs genannten Art gelöst, das dadurch gekennzeichnet ist, daß die Abdeckung durch das Haftverschlußteil selbst gebildet wird, das mit einer in der Breite vorgebbaren Randabdeckung über den Flächenbereich mit den Haftelementen überstehend angeordnet und mit einer Halteeinrichtung in lösbare Anlage mit der Einschäumform gebracht wird. Dadurch, daß beim erfindungsgemäßen Verfahren die die Haftelemente aufweisende Verhakungsseite von jeglichem Dichtmaterial frei ist, die Schaumabdeckung vielmehr durch das Haftverschlußteil selbst sichergestellt wird, das mit seinen überstehenden Randbereichen in abdichtender Anlage an betreffenden Teilen der Einschäumform gehalten wird, ergibt sich die erstrebte Vereinfachung des Verfahrensablaufs, da weder auf die Haftelemente Dichtmaterial aufgebracht, noch dieses anschließend abgezogen werden muß, so daß auch die weiteren Maßnahmen für die eventuelle Wiederverwendung von Dichtmaterial in Wegfall kommen.This object is achieved according to the invention with a method of the type mentioned at the outset, which is characterized in that the cover is formed by the adhesive closure part itself, which, with a marginal cover which can be predetermined, is arranged so as to protrude beyond the surface area with the adhesive elements and with a holding device in detachable manner System with the foaming mold is brought. The fact that in the method according to the invention the interlocking side having the adhesive elements is free of any sealing material, the foam covering is rather ensured by the adhesive closure part itself, which is held with its protruding edge regions in sealing contact with relevant parts of the foaming mold, the desired simplification of the process sequence results , since sealing material is neither applied to the adhesive elements, nor must it subsequently be removed, so that the further measures for the possible reuse of sealing material are also eliminated.
Vorzugsweise werden die Haftelemente in einer Ebene mit der Randabdeckung des Haftverschlußteiles in Anlage mit der Einschäumform angeordnet oder bei einer anderen Art einer Ausführungsform werden vorzugsweise die Haftelemente in einer anderen Ebene wie die Randabdeckung des Haftverschlußteiles und in einer Ausnehmung der Einschäumform in Anlage mit dieser angeordnet.The adhesive elements are preferably arranged in one plane with the edge cover of the adhesive fastener part in contact with the foaming mold, or in another type of embodiment, the adhesive elements are preferably arranged in another plane as the edge cover of the adhesive fastener part and in a recess of the foam mold in contact with the latter.
Bei einer weiteren bevorzugten Ausführungsform des erfindungsgemäßen Verfahrens weist zumindest die Randabdeckung des Haftverschlußteiles ferro- magnetische Bestandteile auf und wird als der eine Teil der Halteeinrichtung benutzt, deren der Einschäumform zugehörige andere Teil durch an dieser angeordnete magnetfelderzeugte Halteelemente gebildet wird, an denen unter Bildung einer Schaumbarriere die Randabdeckung beim Einschäumvorgang gehalten wird.In a further preferred embodiment of the method according to the invention, at least the edge cover of the touch-and-close fastener part has ferromagnetic components and is used as one part of the holding device, the other part of which is associated with the foaming mold, is formed by holding elements generated on the magnetic field and on which elements form a foam barrier the edge cover is held during the foaming process.
Zu diesem Zweck kann so vorgegangen werden, daß die ferromagnetischen Bestandteile integrierter Teil des Haftverschlußteiles sind oder als Schichten auf seiner Vorder- und/oder Rückseite aufgetragen werden. Dabei kann die jeweilige Beschichtung über ein Sol-Gel-Verfahren erhalten oder aus einem Haftgrundmittel gebildet werden. Als der Einschäumform zugehöriger Teil der Halteeinrichtung können Permanentmagnete verwendet werden, beispielsweise in Form einer Reihe von Stabmagneten oder von Magnetleisten, die die in der Wand der Einschäumform ausgebildete Ausnehmung oder Anlagefläche für die Haftelemente umgeben.For this purpose, the procedure can be such that the ferromagnetic components are an integrated part of the adhesive closure part or are applied as layers on its front and / or rear side. The respective coating can be obtained using a sol-gel process or formed from an adhesive primer. Permanent magnets can be used as the part of the holding device belonging to the foaming mold, for example in the form of a series of bar magnets or magnetic strips which surround the recess or contact surface for the adhesive elements formed in the wall of the foaming mold.
Gegenstand der Erfindung ist auch ein in einen Schaumkörperteil einschäum- bares Haftverschlußteil mit den Merkmalen des Anspruches 10.The invention also relates to an adhesive closure part which can be foamed into a foam body part and which has the features of claim 10.
Nachstehend ist die Erfindung anhand der Zeichnung im einzelnen erläutert. Es zeigen dieThe invention is explained in detail below with reference to the drawing. They show
Fig.1 bis 5 eine jeweils schematisch vereinfacht und endseitig geschnitten gezeichnete Stirnansicht der Einschäumform mit einzuschäumendem Haftverschlußteil.1 to 5 each show a schematically simplified and cut end view of the foaming mold with adhesive part to be foamed.
Das jeweilige Haftverschlußteil 1 nach den Fig.1 bis 5 dient insbesondere dem Einschäumen bei Polsterteilen von Fahrzeugsitzen (nicht dargestellt) bei deren Herstellung. Das bandartige Haftverschlußteil 1 , das jedoch auch sonstige flächenmäßige Geometrien ausbilden kann, weist auf der einen Seite Haftelemente 2 auf zum Verbinden mit korrespondierenden Haftelementen eines anderen Haftverschlußteiles (nicht dargestellt) unter Bildung eines üblichen Haftverschlusses. Auf diese Art und Weise lassen sich dann über den jeweiligen Haftverschluß Polster und Polsterbezugmaterialien am geschäumten Fahrzeugsitz lösbar festlegen.The respective fastener part 1 according to FIGS. 1 to 5 is used in particular for foaming upholstery parts of vehicle seats (not shown) during their manufacture. The band-like adhesive fastener part 1, which, however, can also form other surface geometries, has adhesive elements 2 on one side for connection to corresponding adhesive elements of another adhesive fastener part (not shown) to form a conventional adhesive fastener. In this way, upholstery and upholstery materials can then be releasably attached to the foamed vehicle seat via the respective adhesive fastener.
Das in den Fig.1 bis 3 dargestellte Haftverschlußteil 1 wird über ein übliches Verfahren hergestellt, wie es beispielsweise durch die DE 196 46 318.1 gezeigt ist. Die Haftelemente 2 nach den Fig.1 bis 3 sind aus pilzartigen Stengeln gebildet, die an ihrem freien Ende tellerförmig verbreitert sind. Die Haftelemente 2 können aber auch, wie dies die Fig.4 und 5 zeigen, aus in üblicher Weise herzustellenden Schlingen bestehen, die dem Eingriff von hakenförmigen Haftelementen (nicht dargestellt) des korrespondierenden Haftverschlußteiles zum Herstellen eines Haftverschlusses dienen.The adhesive fastener part 1 shown in FIGS. 1 to 3 is produced using a conventional method, as is shown, for example, by DE 196 46 318.1. The adhesive elements 2 according to Figures 1 to 3 are made of mushroom-like stems formed, which are widened in a plate shape at their free end. However, as shown in FIGS. 4 and 5, the adhesive elements 2 can also consist of loops which are to be produced in a conventional manner and which serve to engage hook-shaped adhesive elements (not shown) of the corresponding adhesive fastener part for producing an adhesive fastener.
Wie die Fig.1 bis 5 des weiteren zeigen, wird das jeweilig Haftverschlußteil 1 mit seinen Haftelementen 2 von einer schaumabhaltenden Abdeckung 3 abgedeckt in einer das Schaumkörperteil (nicht dargestellt) erzeugenden Einschäumform 4 aufgenommen, die in den Figuren nur im wesentlichen hälftig als Teil eines Formkastens dargestellt ist. Gemäß der Erfindung wird die Abdeckung 3 durch das Haftverschlußteil 1 selbst gebildet, das mit einer in der Breite vorgebbaren Randabdeckung 5 unter Ausbildung einer Dichtfläche über den Flächenbereich mit den Haftelementen 2 überstehend angeordnet und mit einer Halteeinrichtung, die als Ganzes mit 6 bezeichnet ist, in lösbarer Anlage mit der Einschäumform 4 gebracht wird.As further shown in FIGS. 1 to 5, the respective fastener part 1 with its adhesive elements 2 is covered by a foam-holding cover 3 in a foam mold 4 (not shown) producing the foam body part, which in the figures is only half as part of one Shaped box is shown. According to the invention, the cover 3 is formed by the adhesive closure part 1 itself, which is arranged with an edge cover 5 which can be predetermined in width, with a sealing surface projecting beyond the surface area with the adhesive elements 2, and with a holding device which is designated as a whole by 6 in detachable system with the foam 4 is brought.
Wie die Fig. 1 und 4 zeigen, können bei einer Ausführungsform die Haftelemente 2 in einer Ebene mit der Randabdeckung 5 des Haftverschlußteiles 1 in Anlage mit der Einschäumform 4 angeordnet werden, so daß sich der Flächenbereich mit den Haftelementen 2 in Blickrichtung auf die Fig.1 und 4 gesehen nach oben hin vorstehend auswölbt. Bei einer anderen Ausführungsform nach den Fig.2, 3 und 5 hingegen werden die Haftelemente 2 in einer anderen Ebene wie die Randabdeckung 5 des Haftverschlußteiles 1 und in einer Ausnehmung 7 der Einschäumform 4 in Anlage mit dieser angeordnet. Die angesprochenen Ebenen beziehen sich dabei auf die stirnseitigen Anlageflächen von Haftverschlußteilen 1 mit ihren Haftelementen 2.As shown in FIGS. 1 and 4, in one embodiment the adhesive elements 2 can be arranged in one plane with the edge cover 5 of the adhesive fastener part 1 in contact with the foaming mold 4, so that the surface area with the adhesive elements 2 is in the direction of view of FIG. 1 and 4 bulges upward as seen above. In another embodiment according to FIGS. 2, 3 and 5, on the other hand, the adhesive elements 2 are arranged in a different plane from the edge cover 5 of the adhesive closure part 1 and in a recess 7 of the foam mold 4 in contact with the latter. The levels referred to relate to the front-side contact surfaces of adhesive fastener parts 1 with their adhesive elements 2.
Zumindest die Randabdeckung 5 des Haftverschlußteiles 1 , vorzugsweise jedoch das gesamte Haftverschlußteil in seiner Breite und Länge weist ferro- magnetische Bestandteile auf und wird als der eine Teil der Halteeinrichtung 6 benutzt, deren der Einschäumform 4 zugehöriger anderer Teil durch an dieser angeordnete magnetfelderzeugende Halteelemente 8 gebildet wird, an denen unter Bildung einer Schaumbarriere oder Dichtlippe die Randabdeckung 5 beim Einschäumvorgang gehalten wird. Die Randabdeckung 5 ist zumindest aus zwei Längsrändern des Haftverschlußteiles 1 gebildet, die frei von den Haftelementen 2 zwischen sich mit dem Flächenbereich mit den Haftelementen 2 versehen sind. Vorzugsweise umfaßt jedoch die Randabdeckung 5 vollständig in der Art einer Rechteckform den Flächenbereich mit den Haftelementen 2 nach allen Seiten hin.At least the edge cover 5 of the adhesive fastener part 1, but preferably the entire adhesive fastener part in its width and length, has ferro- Magnetic components and is used as one part of the holding device 6, the other part belonging to the foam-in mold 4 is formed by magnetic field-generating holding elements 8 arranged thereon, on which the edge cover 5 is held during the foaming process to form a foam barrier or sealing lip. The edge cover 5 is formed at least from two longitudinal edges of the adhesive closure part 1, which are provided with the surface area with the adhesive elements 2 between them free of the adhesive elements 2. However, the edge cover 5 preferably completely encompasses the surface area with the adhesive elements 2 on all sides in the manner of a rectangular shape.
Die angesprochenen ferromagnetischen Bestandteile können als integrierter Teil des Haftverschlußteiles ausgebildet oder als Schichten auf seiner Vorder- und/oder Rückseite aufgetragen werden. Vorzugsweise wird dabei die jeweilige Beschichtung über ein Sol-Gel-Verfahren erhalten oder aus einem Haftgrundmittel gebildet.The mentioned ferromagnetic components can be formed as an integrated part of the adhesive closure part or can be applied as layers on its front and / or back. The respective coating is preferably obtained using a sol-gel process or formed from an adhesive primer.
Ein dahingehendes Sol-Gel-Verfahren, das bei der Herstellung von Haftverschlußteilen 1 eingesetzt wird, ist in der PCT/EP 98/03055 beschrieben. Die über das Sol-Gel-Verfahren erhaltene Schicht 9 ist nanokompositär aufgebaut, wobei das Sol-Gel auf der Basis von Si02- und/oder Ti02-modifiziertem Si02 ausgewählt wird. Damit die dahingehende Schicht 9 ferromagnetische Eigenschaften aufweist, wird das Sol-Gel mit Ferrit oder einem ferrithaltigen Material des Aufbaus Fev Oy gemischt. Ferner kann für den Erhalt eines ferromagneti- sehen Sol-Gels Magnetit ausgefällt werden. Die Schicht 9 kann dabei durch Foulardieren, Tauchen, Sprühen, Begießen, Aufdampfen, Auflaminieren oder Aufrakeln sowie Kaschieren auf das Haftverschlußteil 1 aufgetragen werden.Such a sol-gel process, which is used in the production of adhesive fastener parts 1, is described in PCT / EP 98/03055. The layer 9 obtained via the sol-gel process is nanocomposite, the sol-gel being selected on the basis of Si0 2 and / or Ti0 2 modified Si0 2 . So that the relevant layer 9 has ferromagnetic properties, the sol gel is mixed with ferrite or a ferrite-containing material of the structure Fe v Oy. Magnetite can also be precipitated in order to obtain a ferromagnetic sol gel. The layer 9 can be applied to the adhesive fastener part 1 by padding, dipping, spraying, pouring, vapor deposition, laminating or knife coating and laminating.
Die jeweilige Schicht 9 kann aber auch aus einem Haftgrundmittel aus Resor- cin und/oder mindestens einem seiner Derivate bestehen. Insbesondere kann die dahingehende Schicht aus einem Haftgrundmittel eine Ferromagnetika enthaltende Polyurethanschicht darstellen, wobei es sich beispielsweise um das Polyurethan SU 9182 der Firma Stahl handeln kann. Ein dahingehendes Haftgrundmittel ist in der PCT/EP 98/02886 beschrieben.However, the respective layer 9 can also consist of an adhesive primer made of resorcinol and / or at least one of its derivatives. In particular, can the relevant layer of an adhesive primer is a polyurethane layer containing ferromagnetics, which may be, for example, the polyurethane SU 9182 from Stahl. A relevant primer is described in PCT / EP 98/02886.
Die Magnetfelder erzeugenden Halteelemente 8 der Einschäumform 4 sind aus Permanentmagneten, beispielsweise in Form von in der Einschäumform 4 oder in deren Formteilen (Pfeifen) eingelegten Magnetleisten 10 oder Stabmagneten (nicht dargestellt) gebildet. Durch die Magnetkraft der dahingehenden Halteelemente 8 werden die jeweiligen Haftverschlußteile 1 mit ihren ferromagneti- schen Eigenschaften oder mit ihren dahingehenden Schichten während des Einschäumvorganges in fester Anlage und Position innerhalb der Einschäumform 4 gehalten, wobei die jeweilige Abdeckung 3 unter Bildung einer Dichtfläche oder Schaumbarriere im Bereich der jeweiligen Randabdeckung 5 das schädliche Eindringen des Schaummaterials in die Haftelemente 2 mit Sicherheit vermeidet. Eventuelle zusätzliche Abdeckungen auf der Rückseite des Haftverschlußteiles 1 oder in Form einer Dichtmasse unmittelbar für die Haftelemente 2 sind somit vermieden. Wie die Fig.1 und 4 zeigen, können die Randabdeckungen 5 im Bereich der Magnetleisten 10 enden oder, wie die Fig.2, 3 und 5 zeigen, in ihren Randabmessungen darüber hinausreichen und eine verlängerte Dichtstrecke ausbilden. Die angesprochenen Schichten 9 können darüber hinaus, insbesondere wenn sie auf der Rückseite des jeweiligen Haftverschlußteiles 1 angeordnet sind, das der Einschäumform 4 abgewandt ist, den Einschäumvorgang derart verbessern, daß es zu einer sicheren Einschäumung des Haftverschlußteiles 1 in dem Polyurethanschaummaterial des Kraftfahrzeugpolsterteiles kommt.The holding elements 8 of the foaming mold 4 which generate magnetic fields are formed from permanent magnets, for example in the form of magnetic strips 10 or bar magnets (not shown) inserted in the foaming mold 4 or in their molded parts (pipes). By means of the magnetic force of the holding elements 8 in question, the respective fastener parts 1 with their ferromagnetic properties or with their respective layers are held in firm contact and position within the foaming mold 4 during the foaming process, the respective cover 3 being formed in the region, forming a sealing surface or foam barrier the respective edge cover 5 avoids the harmful penetration of the foam material into the adhesive elements 2 with certainty. Any additional covers on the back of the adhesive closure part 1 or in the form of a sealing compound directly for the adhesive elements 2 are thus avoided. As shown in FIGS. 1 and 4, the edge covers 5 can end in the area of the magnetic strips 10 or, as shown in FIGS. 2, 3 and 5, extend beyond them in their edge dimensions and form an extended sealing section. The layers 9 mentioned can, in particular if they are arranged on the back of the respective fastener part 1 facing away from the foaming mold 4, improve the foaming process in such a way that safe foaming of the fastener part 1 in the polyurethane foam material of the motor vehicle upholstery part occurs.
Das Haftverschlußteil 1 besteht insbesondere aus einem Polyamid oder aus einem Polyolefinmaterial. Bei dem bekannten Herstell verfahren nach der DE 196 46 318 A1 wird zur Herstellung des Haftverschlußteiles 1 mit seiner Vielzahl von einstückig ausgebildeten Haftelementen 2 in Form von Verdickungen aufweisenden Stengeln ein thermoplastischer Kunststoff in plastischem oder flüssigem Zustand einem Spalt zwischen einer Druckwalze und einer Formwalze zugeführt, wobei die Formwalze mit nach außen und innen offenen Hohlräumen versehen ist und beide Walzen in entgegengesetztem Drehsinn angetrieben werden. Die Formwalze weist dabei ein Sieb auf, dessen Hohlräume durch Ätzen oder mittels eines Lasers hergestellt worden sind, wobei die Haftverschlußelemente allein dadurch entstehen, daß der thermoplastische Kunststoff in den offenen Hohlräumen des Siebes der Formwalze erhärtet. Die Verdickungen der angesprochenen einzelnen Stengel werden in Form von abgeflachten oder konkave Vertiefungen aufweisenden Pilzköpfen ausgebildet.The adhesive fastener part 1 consists in particular of a polyamide or a polyolefin material. In the known manufacturing process according to DE 196 46 318 A1 is used to manufacture the adhesive fastener part 1 with his A large number of integrally formed adhesive elements 2 in the form of stems having thickenings are fed a thermoplastic in a plastic or liquid state into a gap between a pressure roller and a shaping roller, the shaping roller being provided with cavities which are open to the inside and outside and both rollers are driven in opposite directions of rotation . The molding roll has a screen, the cavities of which have been produced by etching or by means of a laser, the adhesive closure elements being produced solely by the fact that the thermoplastic material hardens in the open cavities of the screen of the molding roll. The thickenings of the individual stems mentioned are formed in the form of flattened or concave recesses with mushroom heads.
Nach anderen bekannten Verfahren lassen sich die Schlingen als Haftelemente 2 gemäß den Darstellungen nach den Fig.4 und 5 herstellen. Bei dem angesprochenen Formwalzenverfahren lassen sich jedenfalls sehr kleine einzelne Haftelemente 2 herstellen, deren Größe durchaus im Nanometerbereich liegen kann. Anstelle des angesprochenen Kunststoffmaterials kann das Haftverschlußteil 1 auch aus textilen oder sonstigen Kunststoffmaterialien gebildet werden, beispielsweise unter Einsatz üblicher Strick- und Wirktechniken. Sofern diese mit ferromagnetischen Beschichtungen versehen werden, läßt sich gleichfalls eine abdichtende Schaumbarriere erreichen. Nach Durchführen des Einschäumvorganges läßt sich das geschäumte Teil, insbesondere Polsterteil, mit dem in ihm eingeschäumten Haftverschlußteil 1 ohne weiteres aus der Einschäumform 4 entfernen unter Überwindung der Haltekräfte der in der Einschäumform angeordneten Halteelemente 8. Die Einschäumform 4 steht dann wieder für einen erneuten Einschäumvorgang zur Verfügung. Die Haftelemente 2 des derart eingeschäumten Haftverschlußteiles 1 liegen dann auf jeden Fall zur Umgebung hin frei und weisen kein Schaummaterial auf, das ihre Funktionsfähigkeit beeinträchtigen könnte. Bei der Realisierung der Abdichtung über das Haftverschlußteil 1 selbst gegen das Schaummaterial sind keine Zusatzstoffe oder Zusatzdichtungen, wie aufgesetzte Dichtlippen od.dgl., notwendig, sondern die Abdichtung erfolgt allein durch die planparallele Anlage von Oberflächen des Haftverschlußbandes mit entsprechenden Anlageflächen der Einschäumform. Dabei kann die Randabdek- kung 5 des Haftverschlußteiles 1 , die die Abdichtung herstellt, in der Art einer Folie oder zumindest sehr dünnwandig ausgebildet sein. According to other known methods, the loops can be produced as adhesive elements 2 as shown in FIGS. 4 and 5. In any case, with the molding roll method mentioned, very small individual adhesive elements 2 can be produced, the size of which may well be in the nanometer range. Instead of the plastic material mentioned, the adhesive closure part 1 can also be formed from textile or other plastic materials, for example using conventional knitting and knitting techniques. If these are provided with ferromagnetic coatings, a sealing foam barrier can also be achieved. After the foaming process has been carried out, the foamed part, in particular the upholstered part, can be easily removed from the foaming mold 4 with the adhesive closure part 1 foamed therein, overcoming the holding forces of the holding elements 8 arranged in the foaming mold. The foaming mold 4 is then available for a new foaming process Available. The adhesive elements 2 of the adhesive closure part 1 foamed in this way are then exposed to the surroundings in any case and have no foam material that could impair their functionality. When realizing the seal via the adhesive fastener part 1 itself against the foam material, no additives or additional seals, such as attached sealing lips or the like, are necessary, but the sealing is carried out solely by the plane-parallel contact of surfaces of the adhesive fastener tape with corresponding contact surfaces of the foaming mold. The edge cover 5 of the adhesive closure part 1, which produces the seal, can be designed in the manner of a film or at least very thin-walled.

Claims

P a t e n t a n s p r ü c h e Patent claims
1 . Verfahren zum Herstellen eines Schaumkörperteiles, insbesondere eines Polsterschaumteiles, für einen Fahrzeugsitz, das mit mindestens einem Haftverschlußteil (1 ) mit Haftelementen (2) versehen wird, die von einer schaumabhaltenden Abdeckung (3) abgedeckt in einer das Schaumkörperteil erzeugenden Einschäumform (4) aufgenommen werden, dadurch gekennzeichnet, daß die Abdeckung (3) durch das Haftverschlußteil (1 ) selbst gebildet wird, das mit einer in der Breite vorgebbaren Randabdek- kung (5) über den Flächenbereich mit den Haftelementen (2) überstehend angeordnet und mit einer Halteeinrichtung (6) in lösbarer Anlage mit der Einschäumform (4) gebracht wird.1 . Method for producing a foam body part, in particular an upholstered foam part, for a vehicle seat, which is provided with at least one adhesive fastener part (1) with adhesive elements (2), which are covered by a foam-holding cover (3) and accommodated in a foam mold (4) producing the foam body part , characterized in that the cover (3) is formed by the adhesive closure part (1) itself, which is arranged with a width-adjustable edge cover (5) projecting beyond the surface area with the adhesive elements (2) and with a holding device (6 ) is brought into a detachable system with the foam mold (4).
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, daß die Haftelemente (2) in einer Ebene mit der Randabdeckung (5) des Haftverschlußteiles (1 ) in Anlage mit der Einschäumform (4) angeordnet werden.2. The method according to claim 1, characterized in that the adhesive elements (2) in one plane with the edge cover (5) of the adhesive fastener part (1) are arranged in contact with the foam mold (4).
3. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, daß die Haftelemente (2) in einer anderen Ebene wie die Randabdeckung (5) des Haftverschlußteiles (1 ) und in einer Ausnehmung (7) der Einschäumform (4) in Anlage mit dieser angeordnet werden.3. The method according to claim 1, characterized in that the adhesive elements (2) in a different plane as the edge cover (5) of the adhesive fastener part (1) and in a recess (7) of the foam mold (4) are arranged in contact with this.
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß zumindest die Randabdeckung (5) des Haftverschlußteiles (1 ) ferro- magnetische Bestandteile aufweist und als der eine Teil der Halteeinrichtung (6) benutzt wird, deren der Einschäumform (4) zugehöriger anderer Teil durch an dieser angeordnete magnetfelderzeugende Halteelemente (8) gebildet wird, an denen unter Bildung einer Schaumbarriere die Randabdeckung (5) beim Einschäumvorgang gehalten wird.4. The method according to any one of claims 1 to 3, characterized in that at least the edge cover (5) of the adhesive fastener part (1) has ferromagnetic components and as the one part of the holding device (6) is used, the foaming mold (4) associated other part by arranged on this magnetic field generating holding elements (8) is formed, on which the edge cover (5) is held during the foaming process to form a foam barrier.
5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Randabdeckung (5) zumindest aus zwei Längsrändern des Haftverschlußteiles (1 ) gebildet wird, die frei von Haftelementen (2) zwischen sich mit dem Flächenbereich mit den Haftelementen (2) versehen werden.5. The method according to any one of claims 1 to 4, characterized in that the edge cover (5) is formed at least from two longitudinal edges of the adhesive fastener part (1) which are free of adhesive elements (2) between them with the surface area with the adhesive elements (2) be provided.
6. Verfahren nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß die ferromagnetischen Bestandteile als integrierter Teil des Haftverschlußteiles (1 ) ausgebildet oder als Schichten (9) auf seiner Vorder- und/oder Rückseite aufgetragen werden.6. The method according to claim 4 or 5, characterized in that the ferromagnetic components are formed as an integrated part of the adhesive fastener part (1) or are applied as layers (9) on its front and / or back.
7. Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß die jeweilige Schicht (9) über ein Sol-Gel-Verfahren erhalten oder aus einem Haftgrundmittel gebildet wird.7. The method according to claim 6, characterized in that the respective layer (9) obtained via a sol-gel process or is formed from an adhesive primer.
8. Verfahren nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, daß die magnetfelderzeugenden Halteelemente (8) der Einschäumform (4) aus Permanentmagneten beispielsweise in Form von in der Einschäumform (4) oder in deren Formteilen eingelegte Magnetleisten (10) oder Stabmagneten gebildet werden.8. The method according to any one of claims 4 to 7, characterized in that the magnetic field-generating holding elements (8) of the foaming mold (4) made of permanent magnets, for example in the form of in the foaming mold (4) or in their moldings inserted magnetic strips (10) or bar magnets become.
9. Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß das Haftverschlußteil (1 ) aus einem Polyamid- oder aus einem Poly- olefin-Material oder zumindest teilweise aus textilen Materialien gebildet wird.9. The method according to any one of claims 1 to 8, characterized in that the adhesive fastener part (1) is formed from a polyamide or from a polyolefin material or at least partially from textile materials.
10. Haftverschlußteil (1 ), hergestellt nach dem Verfahren nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß das in einen Schaumkör- perteil einschäumbare Haftverschlußteil (1 ) mit einer Randabdeckung (5) versehen ist, die frei von Haftelementen (2) einen Teil einer Halteeinrichtung (6) für die lösbare Anlage an Teilen einer zur Erzeugung des Schaumkörperteiles dienenden Einschäumform (4) aufweist. 10. adhesive closure part (1), produced by the method according to any one of claims 1 to 9, characterized in that the in a foam body Partly foamable adhesive closure part (1) is provided with an edge cover (5) which, free of adhesive elements (2), has a part of a holding device (6) for the releasable contact with parts of a foaming mold (4) used to produce the foam body part.
PCT/EP1998/006141 1998-09-28 1998-09-28 Process for producing foamed articles, especially foamed articles for upholstering car seats WO2000018556A1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP98958223A EP1117519B1 (en) 1998-09-28 1998-09-28 Process for producing foamed articles, especially foamed articles for upholstering car seats, and touch fastening component for use in the process
BR9816036-2A BR9816036A (en) 1998-09-28 1998-09-28 Process for producing a foam body part, particularly a foam upholstery part for an automobile seat
JP2000572063A JP4439118B2 (en) 1998-09-28 1998-09-28 Method of manufacturing foam articles, in particular foam articles for packing in automobile seats
US09/787,110 US7063878B1 (en) 1998-09-28 1998-09-28 Process for producing foamed articles, especially foamed articles for upholstering car seats
CA002345152A CA2345152C (en) 1998-09-28 1998-09-28 Process for producing foamed articles, especially foamed articles for upholstering car seats
ES98958223T ES2192343T3 (en) 1998-09-28 1998-09-28 PROCEDURE FOR THE MANUFACTURE OF A FOAM ARTICLE, ESPECIALLY OF A UPHOLSTERY FOAM PIECE FOR A VEHICLE SEAT AND CONTACT FIXING ELEMENT USED IN THE PROCEDURE.
PCT/EP1998/006141 WO2000018556A1 (en) 1998-09-28 1998-09-28 Process for producing foamed articles, especially foamed articles for upholstering car seats
AT98958223T ATE232156T1 (en) 1998-09-28 1998-09-28 METHOD FOR PRODUCING A FOAM BODY PART, PARTICULARLY AN UPHOLSTERY FOAM PART FOR A VEHICLE SEAT, AND ADHESIVE FASTENING PART FOR USE IN THE METHOD
DE59807145T DE59807145D1 (en) 1998-09-28 1998-09-28 METHOD FOR PRODUCING A FOAM BODY PART, PARTICULARLY A PADDED PART FOR A VEHICLE SEAT, AND A LOCKED PART FOR USE IN THE PROCESS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1998/006141 WO2000018556A1 (en) 1998-09-28 1998-09-28 Process for producing foamed articles, especially foamed articles for upholstering car seats

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WO2000018556A1 true WO2000018556A1 (en) 2000-04-06

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US (1) US7063878B1 (en)
EP (1) EP1117519B1 (en)
JP (1) JP4439118B2 (en)
AT (1) ATE232156T1 (en)
BR (1) BR9816036A (en)
CA (1) CA2345152C (en)
DE (1) DE59807145D1 (en)
ES (1) ES2192343T3 (en)
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US8413306B2 (en) 2004-02-24 2013-04-09 Velcro Industries B.V. Fastener products
US8069537B2 (en) 2008-05-16 2011-12-06 Velcro Industries B.V. Fastener products and related methods
US8998338B2 (en) 2012-09-20 2015-04-07 Steelcase Inc. Chair assembly with upholstery covering
US9173491B2 (en) 2012-09-20 2015-11-03 Steelcase Inc. Chair assembly with upholstery covering
US9179777B2 (en) 2012-09-20 2015-11-10 Steelcase Inc. Method of assembling a chair component
US9345328B2 (en) 2012-09-20 2016-05-24 Steelcase Inc. Chair assembly with upholstery covering
US9681750B2 (en) 2012-09-20 2017-06-20 Steelcase Inc. Chair assembly with upholstery covering
US10165861B2 (en) 2012-09-20 2019-01-01 Steelcase Inc. Chair assembly with upholstery covering
US10765212B2 (en) 2012-09-20 2020-09-08 Steelcase Inc. Chair assembly with upholstery covering
US10293971B2 (en) 2016-10-11 2019-05-21 Velcro BVBA Reclosable paperboard carton
US11160334B2 (en) 2017-08-18 2021-11-02 Velcro Ip Holdings Llc Fastener element shape

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US7063878B1 (en) 2006-06-20
ES2192343T3 (en) 2003-10-01
DE59807145D1 (en) 2003-03-13
BR9816036A (en) 2001-05-29
CA2345152A1 (en) 2000-04-06
JP4439118B2 (en) 2010-03-24
CA2345152C (en) 2007-03-13
ATE232156T1 (en) 2003-02-15
EP1117519A1 (en) 2001-07-25
JP2002525220A (en) 2002-08-13
EP1117519B1 (en) 2003-02-05

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